Home / 3,198.19-4,798.68-1,119.69

Finding the Fourth Proportional to 3,198.19, 4,798.68 and 1,119.69

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Solution

The fourth proportional to 3,198.19, 4,798.68 and 1,119.69 is: 1,680.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.19 : 4,798.68 = 1,119.69 : x
  2. Step 2: Convert to fraction form
    3,198.19/4,798.68 = 1,119.69/x
  3. Step 3: Cross multiply
    3,198.19x = 4,798.68 × 1,119.69
  4. Step 4: Simplify right side
    3,198.19x = 5,373,034.01
  5. Step 5: Solve for x
    x = 5,373,034.01/3,198.19
  6. Step 6: Final answer
    x = 1,680.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.